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Finding the Fourth Proportional to 6,408.94, 9,616.02 and 3,287.38

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Solution

The fourth proportional to 6,408.94, 9,616.02 and 3,287.38 is: 4,932.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.94 : 9,616.02 = 3,287.38 : x
  2. Step 2: Convert to fraction form
    6,408.94/9,616.02 = 3,287.38/x
  3. Step 3: Cross multiply
    6,408.94x = 9,616.02 × 3,287.38
  4. Step 4: Simplify right side
    6,408.94x = 31,611,511.83
  5. Step 5: Solve for x
    x = 31,611,511.83/6,408.94
  6. Step 6: Final answer
    x = 4,932.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.